The arm of the mic switches back and forward to I can have the earpiece on the left or right as suits me at that time. I bought one from Amazon as soon as I could rationalize the expense. They have a nice trip on the sole and are resistant to stains. Noise cancellation works pretty good (had my sister test that one out xD ) and the microphone works great! We had to continually try different solutions just to get the shelves on. I normally wear between a 7-7. I love how it is versatile because you can change the height of both the bottom and the top rack and the hanging pole can be moved forwards or backwards. As the rubber heats up it will loosen the strap. I don’t recommend this AirPod Pro case at all. Great for river or water play.